KR920000959A - Manufacturing method of steel for spring - Google Patents

Manufacturing method of steel for spring Download PDF

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Publication number
KR920000959A
KR920000959A KR1019910010243A KR910010243A KR920000959A KR 920000959 A KR920000959 A KR 920000959A KR 1019910010243 A KR1019910010243 A KR 1019910010243A KR 910010243 A KR910010243 A KR 910010243A KR 920000959 A KR920000959 A KR 920000959A
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KR
South Korea
Prior art keywords
cold rolled
annealing
temperature
rolled sheet
steel
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KR1019910010243A
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Korean (ko)
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KR930012177B1 (en
Inventor
쯔네토시 수자키
토모요시 이와오
데루오 다나카
도시로오 야마다
Original Assignee
카이 미키
닛신세이코오 가부시키가이샤
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Priority claimed from JP15879090A external-priority patent/JP2961666B2/en
Priority claimed from JP2507791A external-priority patent/JP2823965B2/en
Priority claimed from JP2507691A external-priority patent/JP2952862B2/en
Application filed by 카이 미키, 닛신세이코오 가부시키가이샤 filed Critical 카이 미키
Publication of KR920000959A publication Critical patent/KR920000959A/en
Application granted granted Critical
Publication of KR930012177B1 publication Critical patent/KR930012177B1/en

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/02—Hardening by precipitation
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0273—Final recrystallisation annealing
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

내용없음No content

Description

스프링용 강의 제조방법Manufacturing method of steel for spring

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 가열온도와 강의 경도와의 관계를 나타내는 그래프.1 is a graph showing the relationship between the heating temperature and the hardness of the steel.

Claims (9)

판을 성형하기 위하여 0.4-0.8중량%의 탄소, 0.5-2.5중량%의 규소, 0.3-2.0중량%의 망간, 0.1-1.5중량%의 크롬, 0.1-0.5중량%의 몰리브덴과, 나머지부분은 철 및 불가피 불순물로 이루어져 있는 강재료를 열간압연하는 공정과, 열간압연판을 어니일링하는 공정과, 어니일링된 열간압연판을 10-80%의 압연량으로 냉간압연하는 공정과, Ac1변태점 이하의 온도에서 냉간압연판을 어니일링하는 공정과, Ac3변태점 이상의 온도에서 탄화물을 오스테나이트화하기에 충분한 시간동안 어니일링된 냉간압연판을 가열하는 공정과, 가열된 냉간압연판을 냉각시키는 공정과, 냉각된 냉각압연판을 탄화물을 석출하기에 필요한 시간동안 가열한 후에 실온까지 냉각시키는 공정으로 구성되어 있는 것을 특징으로 하는 스프링용 강의 제조방법.0.4-0.8 wt% carbon, 0.5-2.5 wt% silicon, 0.3-2.0 wt% manganese, 0.1-1.5 wt% chromium, 0.1-0.5 wt% molybdenum and the remainder to form the plate And hot rolling a steel material composed of unavoidable impurities, annealing the hot rolled plate, cold rolling the annealed hot rolled plate at a rolling amount of 10-80%, and having an ac1 transformation point or less. Annealing the cold rolled plate at a temperature, heating the annealed cold rolled plate for a time sufficient to austenitize carbide at a temperature above the Ac 3 transformation point, cooling the heated cold rolled plate, A method of producing a spring steel, characterized by comprising: cooling the cooled cold rolled sheet for a time required to precipitate carbides, and then cooling to room temperature. 제1항에 있어서, 강재료는 0.05-0.5중량%의 바나듐과 0.05-0.5중량%의 니오브 중 적어도 하나를 더 함유하는 것을 특징으로 하는 스프링용 강의 제조방법.The method of claim 1, wherein the steel material further contains at least one of 0.05-0.5 wt% vanadium and 0.05-0.5 wt% niobium. 제1항에 있어서, 강재료는 0.020중량% 이하의 알루미늄을 더 함유하는 것을 특징으로 하는 스프링용 강의 제조방법.The method of claim 1, wherein the steel material further contains 0.020% by weight or less of aluminum. 제1항에 있어서, 냉각된 냉간압연판의 가열을 450-600℃의 온도로 실시하는 것을 특징으로 하는 스프링용 강의 제조방법.The method of claim 1, wherein the cooled cold rolled sheet is heated at a temperature of 450-600 ° C. 제1항에 있어서, 규소함량 및 크롬함량을 다음식을 만족하도록 선택하는 것을 특징으로 하는 스프링용 강의 제조방법.The method of claim 1, wherein the silicon content and the chromium content are selected to satisfy the following equation. -7≤4 X Si(%)-10 X Cr(%)≤5-7≤4 X Si (%)-10 X Cr (%) ≤5 제1항에 있어서, 가열된 냉간압연판의 냉각을 저임계냉각속도 이상의 속도로 실시하는 것을 특징으로 하는 스프링용 강의 제조방법.The method of manufacturing a steel for spring according to claim 1, wherein the heated cold rolled sheet is cooled at a speed equal to or higher than a low critical cooling rate. 제3항에 있어서, 냉각된 냉각압연판의 가열을 HV400-HV550의 어니일링경도를 보유하도록 실시하는 것을 특징으로 하는 스프링용 강의 제조방법.4. The method of claim 3, wherein heating of the cooled cold rolled sheet is performed to maintain annealing hardness of HV400-HV550. 제5항에 있어서, 냉간압연판의 어니일링 550-730℃의 온도에서 실시하여 탄화물이 2㎛ 이하의 평균입경을 보유하도록 하는 것을 특징으로 하는 스프링용 강의 제조방법.The method of claim 5, wherein the annealing of the cold rolled sheet is carried out at a temperature of 550-730 DEG C so that the carbides have an average particle diameter of 2 mu m or less. 0.4-0.8중량%의 탄소와, 0.5-2.5중량%의 규소와, 0.3-2.0중량%의 망간과, 0.1-1.5중량%의 크롭과, 0.1-0.5중량%의 몰리브덴 및, 나머지 부분이 철과 불가피불순물로 이루어져 있는 것을 특징으로 하는 스프링용 강.0.4-0.8% carbon, 0.5-2.5% silicon, 0.3-2.0% manganese, 0.1-1.5% crop, 0.1-0.5% molybdenum and the rest Spring steel, characterized in that consisting of inevitable impurities. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910010243A 1990-06-19 1991-06-19 Method of making steel for spring KR930012177B1 (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
JP15879090A JP2961666B2 (en) 1990-06-19 1990-06-19 Manufacturing method of spring steel with excellent resistance to warm set
JP2-158790 1990-06-19
JP???2-158790? 1990-06-19
JP3-025076 1991-01-28
JP2507791A JP2823965B2 (en) 1991-01-28 1991-01-28 Manufacturing method of steel for diaphragm spring
JP???3-025076? 1991-01-28
JP3-025077 1991-01-28
JP2507691A JP2952862B2 (en) 1991-01-28 1991-01-28 Manufacturing method of spring steel with excellent hardenability and warm set resistance
JP???3-025077? 1991-01-28

Publications (2)

Publication Number Publication Date
KR920000959A true KR920000959A (en) 1992-01-29
KR930012177B1 KR930012177B1 (en) 1993-12-24

Family

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Application Number Title Priority Date Filing Date
KR1019910010243A KR930012177B1 (en) 1990-06-19 1991-06-19 Method of making steel for spring

Country Status (5)

Country Link
EP (1) EP0462779B1 (en)
KR (1) KR930012177B1 (en)
AU (1) AU633737B2 (en)
CA (1) CA2044639C (en)
DE (1) DE69121982T2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2932943B2 (en) * 1993-11-04 1999-08-09 株式会社神戸製鋼所 High corrosion resistance and high strength steel for springs
SE502969C2 (en) * 1994-02-17 1996-03-04 Uddeholm Steel Strip Use of a steel alloy as material for coating scrapers in the form of cold rolled strips
GB2352726A (en) 1999-08-04 2001-02-07 Secr Defence A steel and a heat treatment for steels
DE60129463T2 (en) * 2000-12-20 2008-04-17 Kabushiki Kaisha Kobe Seiko Sho, Kobe ROLLED WIRE ROLL FOR HARDENED SPRINGS, DRAWN WIRE FOR HARDED FEED AND HARDENED SPRINGS AND METHOD FOR PRODUCING HARD RETAINED SPRINGS
AU2003236070A1 (en) 2002-04-02 2003-10-13 Kabushiki Kaisha Kobe Seiko Sho Steel wire for hard drawn spring excellent in fatigue strength and resistance to settling, and hard drawn spring
US7615186B2 (en) 2003-03-28 2009-11-10 Kobe Steel, Ltd. Spring steel excellent in sag resistance and fatigue property
JP4291639B2 (en) 2003-08-28 2009-07-08 トヨタ自動車株式会社 Iron-based sintered alloy and method for producing the same
EP2028285B1 (en) * 2006-06-09 2016-03-23 Kabushiki Kaisha Kobe Seiko Sho High cleanliness spring steel and high cleanliness spring excellent in fatigue characteristics
JP5624503B2 (en) 2011-03-04 2014-11-12 日本発條株式会社 Spring and manufacturing method thereof
CN106202937B (en) * 2016-01-28 2018-10-19 西北工业大学 M50 steel forgings make carbide size prediction technique in tissue
SE543422C2 (en) * 2019-06-07 2021-01-12 Voestalpine Prec Strip Ab Steel strip for flapper valves

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1290235A (en) * 1961-02-28 1962-04-13 Ct Tech De L Ind Horlogere Method of manufacturing springs or materials for steel springs and springs or materials obtained by this method, in particular springs for watch movements
JPS5827956A (en) * 1981-08-11 1983-02-18 Aichi Steel Works Ltd Spring steel with superior wear resistance
JPS5827955A (en) * 1981-08-11 1983-02-18 Aichi Steel Works Ltd Spring steel with superior hardenability and wear resistance
AU547648B2 (en) * 1981-09-30 1985-10-31 Aichi Steel Works Ltd. Steel for a vehicle suspension spring
JPH02240240A (en) * 1989-03-10 1990-09-25 Aisin Seiki Co Ltd Diaphragm spring of clutch for automobile use

Also Published As

Publication number Publication date
EP0462779A2 (en) 1991-12-27
DE69121982T2 (en) 1997-01-30
CA2044639C (en) 2001-08-28
AU7837391A (en) 1992-01-09
AU633737B2 (en) 1993-02-04
CA2044639A1 (en) 1991-12-20
KR930012177B1 (en) 1993-12-24
DE69121982D1 (en) 1996-10-17
EP0462779B1 (en) 1996-09-11
EP0462779A3 (en) 1993-09-01

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